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[" If "f(x)=|x-a|+|x+b|,x in R,b>a>0," t...

[" If "f(x)=|x-a|+|x+b|,x in R,b>a>0," then "],[[" a) "f^(1)(a+)=1," b) "f'(a+)=0," c) "f^(1)(-b+)=0," d) "f^(1)(-b+)=1]]

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